程海华1，朱建新2，曲克明2 ，杨志强2
（1上海海洋大学水产与生命学院，上海 201306）
（2农业部海洋渔业可持续发展重点实验室 中国水产科学研究院黄海水产研究所，山东 青岛266000）

摘要：有机碳源作为循环水养殖系统生物膜上微生物的重要营养物质，其在水中的存在形式及含量大小不仅影响生物膜的结构，而且影响主要功能菌的代谢活动，进而影响生物滤池的净水效果。为了进一步了解有机碳源如何影响生物滤池的整个净化过程，探讨其作用机理，本文总结了近年来循环水养殖系统内不同存在形式的有机碳对生物膜构建、生物膜结构，以及生物膜净化效果（有机物去除、硝化作用、反硝化作用）的研究进展，并针对研究过程中存在的问题进行了分析，期望能为以后的相关研究或养殖企业解决生物滤器碳源问题提供必要的帮助。

关键词：循环水养殖系统；生物滤池；细菌；有机碳源；净化效果

Advance in the effect of organic carbon source on biofilter purification in recirculating aquaculture system
CHENG Haihua1, ZHU Jianxin2*, QU Keming2, YANG Zhiqiang2
(1 College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, China;
2 Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture,
Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266000, China)

Abstract: Organic carbon source is one of the necessary nutrition elements for microorganisms in biofilms in recirculating aquaculture system (RAS). Its forms and content in the water not only affect the structure of the biofilm, but also the metabolic activity of the main functional bacteria, thus affecting the water purification effect of the biofilter. In recent years, there were a number of studies on the effects of organic carbon source on purification in biofilter, which mainly focused on biological denitrification effect. While the studies on the effects of organic carbon source on the whole purification process and the purification efficiency are relatively few. In order to further understand the effects of organic carbon source on the whole purification process of the biofilter and its mechanism, the effects of different forms of organic carbon in RAS on the formation of biofilm and its structure, and its effect on the purification efficiency of biofilm (organic matters removal, nitrification and denitrification) are summarized. And possible solutions were also proposed for the problems exsisting in the studies.
 

Key words: recirculating aquaculture system; biofilter ; bacteria ; organic carbon source ; purification efficiency